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Finding the Fourth Proportional to 563,196.54, 777,266.94 and 321,515.41

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Solution

The fourth proportional to 563,196.54, 777,266.94 and 321,515.41 is: 443,723.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,196.54 : 777,266.94 = 321,515.41 : x
  2. Step 2: Convert to fraction form
    563,196.54/777,266.94 = 321,515.41/x
  3. Step 3: Cross multiply
    563,196.54x = 777,266.94 × 321,515.41
  4. Step 4: Simplify right side
    563,196.54x = 249,903,298,893.55
  5. Step 5: Solve for x
    x = 249,903,298,893.55/563,196.54
  6. Step 6: Final answer
    x = 443,723.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.